Wireless charger



FIG. 1 is a perspective view of the wireless charger;

FIG. 2 is a front elevation view of the wireless charger;

FIG. 3 is a rear elevation view of the wireless charger;

FIG. 4 is a left side elevation view of the wireless charger;

FIG. 5 is a right side elevation view of the wireless charger;

FIG. 6 is a top plan view of the wireless charger; and,

FIG. 7 is a bottom plan view of the wireless charger. 

CLAIM The ornamental design for a wireless charger, as shown and described. 